QED
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QED certificate

QED record 9f8386704098 from . View the live pool page.

Verified · Ondo USO

Does USOon / OIL match its issuer's published contract?

The pool's quote contract matches Ondo's registry entry for USO.

Verified means the observed quote-token contract matches an issuer-published registry entry on BNB Chain. Only the quote-side contract is checked.

This does not prove backing, custody, reserves, price, safety, solvency, or endorsement.

Signature valid · contract match

BNB Chain pancake-v2
Subject
USOon / OIL · BNB Chain
Pool address
0x623dFe832DA3cb6ca6E940eB8fb0D20a7Effe280
Issuer match
Ondo · USO · View USO contracts
Checked
Valid until
Serial
9f8386704098
Signed by
QED (key id GJWKkiUd)

After this time the certificate remains a historical record, but it no longer establishes current pool or registry state. Re-check to create a fresh observation before relying on current facts.

Compare this address with the one you were given before you trade.

1.04% Checked

Only trust an address you pasted here or opened from this page.

How to verify this yourself

QED signs a canonical JSON payload. Fetch the public key from /.well-known/qed.json, then check the signature against this payload.

Canonical JSON
{"block":128678470,"chain":"bnb","checked_at":"2026-10-20T04:00:25Z","dev":false,"expires_at":"2026-10-21T04:00:25Z","issuer":"Ondo","pool":{"base":{"address":"0x2990a3d5bC2F6139FC8594A35f3A724741ba7777","balance":"977830763396488916217744444","decimals":18,"symbol":"OIL"},"chain":"bnb","dex":"pancake-v2","pool":"0x623dFe832DA3cb6ca6E940eB8fb0D20a7Effe280","quote":{"address":"0x94174e3D1335db402dD03A092f7aA7ac2cb32be4","balance":"13557607299843781653","decimals":18,"symbol":"USOon"}},"quote_share_of_supply":0.01038921117580547,"reads":[{"block":128678470,"method":"eth_blockNumber","params":[],"result_hash":"c5a76e43a151aec6dc241fd91d97ae3f36ce702572d410623bcf87fe90ad00ce","slot":null},{"block":null,"method":"eth_call","params":["0x623dFe832DA3cb6ca6E940eB8fb0D20a7Effe280","token0()"],"raw_result":"0x2990a3d5bc2f6139fc8594a35f3a724741ba7777","result_hash":"5c11d0b3bf037b7730e56d3b2ce0b83b0c4449a5c402ed3536c8f3b557cc3da0","slot":null},{"block":null,"method":"eth_call","params":["0x623dFe832DA3cb6ca6E940eB8fb0D20a7Effe280","token1()"],"raw_result":"0x94174e3d1335db402dd03a092f7aa7ac2cb32be4","result_hash":"25d68b064a7c686b411f3954091de148a4b89178b5d0f33ea1cede57e4533728","slot":null},{"block":null,"method":"eth_call","params":["0x623dFe832DA3cb6ca6E940eB8fb0D20a7Effe280","getReserves()"],"raw_result":"true","result_hash":"18d10c7d2b4b04aaf04254d1ae5d655a5dc0407cbcdd5a8c3986e985370f36ee","slot":null},{"block":null,"method":"eth_call","params":["0x623dFe832DA3cb6ca6E940eB8fb0D20a7Effe280","factory()"],"raw_result":"0xca143ce32fe78f1f7019d7d551a6402fc5350c73","result_hash":"cca9f0708cbe3ba281b9d1b8ebd0a086cc47571f860d681f7f16e9e8a73617f9","slot":null},{"block":null,"method":"eth_call","params":["0xcA143Ce32Fe78f1f7019d7d551a6402fC5350c73","getPair","0x2990a3d5bC2F6139FC8594A35f3A724741ba7777","0x94174e3D1335db402dD03A092f7aA7ac2cb32be4"],"raw_result":"0x623dfe832da3cb6ca6e940eb8fb0d20a7effe280","result_hash":"1a3c5e4c02f58d3caaca5636011efcfc73aa0ae0ec5762c8fd4caeb341ce37f9","slot":null},{"block":null,"method":"eth_call","params":["0x2990a3d5bC2F6139FC8594A35f3A724741ba7777","symbol()"],"raw_result":"Some(\"OIL\")","result_hash":"10d74bcb18ba6650ede9331c0c8019195854c565e47e1d3e1708012dc71e7bcb","slot":null},{"block":null,"method":"eth_call","params":["0x2990a3d5bC2F6139FC8594A35f3A724741ba7777","decimals()"],"raw_result":"Some(18)","result_hash":"c14f173ff30df32f36fac2ea29d9a20482082428fd32b58be5433d310884f764","slot":null},{"block":null,"method":"eth_call","params":["0x2990a3d5bC2F6139FC8594A35f3A724741ba7777","balanceOf","0x623dFe832DA3cb6ca6E940eB8fb0D20a7Effe280"],"raw_result":"Some(\"977830763396488916217744444\")","result_hash":"19ea3b2e843b9bb67c6eaf38e5eb55ec53a5bd5567efa0050b6cd793fdff3c84","slot":null},{"block":null,"method":"eth_call","params":["0x94174e3D1335db402dD03A092f7aA7ac2cb32be4","symbol()"],"raw_result":"Some(\"USOon\")","result_hash":"d3b147844c3d656f4e27b8fd00f492b3177fbdbf0ea6a66d5d9f74d570e38cab","slot":null},{"block":null,"method":"eth_call","params":["0x94174e3D1335db402dD03A092f7aA7ac2cb32be4","decimals()"],"raw_result":"Some(18)","result_hash":"c14f173ff30df32f36fac2ea29d9a20482082428fd32b58be5433d310884f764","slot":null},{"block":null,"method":"eth_call","params":["0x94174e3D1335db402dD03A092f7aA7ac2cb32be4","balanceOf","0x623dFe832DA3cb6ca6E940eB8fb0D20a7Effe280"],"raw_result":"Some(\"13557607299843781653\")","result_hash":"09ed0f5664eea6390b8bffde34ca612493921399228e1873b776db59109e3aab","slot":null},{"block":null,"method":"eth_call","params":["0x2990a3d5bC2F6139FC8594A35f3A724741ba7777","symbol()"],"raw_result":"Some(\"OIL\")","result_hash":"10d74bcb18ba6650ede9331c0c8019195854c565e47e1d3e1708012dc71e7bcb","slot":null},{"block":null,"method":"eth_call","params":["0x2990a3d5bC2F6139FC8594A35f3A724741ba7777","name()"],"raw_result":"Some(\"Oilcoin\")","result_hash":"027b6777215d460fa069f1a0ade60933ac7924a00af81d7fa8f23c5bbe411017","slot":null},{"block":null,"method":"eth_call","params":["0x2990a3d5bC2F6139FC8594A35f3A724741ba7777","decimals()"],"raw_result":"Some(18)","result_hash":"c14f173ff30df32f36fac2ea29d9a20482082428fd32b58be5433d310884f764","slot":null},{"block":null,"method":"eth_call","params":["0x2990a3d5bC2F6139FC8594A35f3A724741ba7777","totalSupply()"],"raw_result":"Some(\"1000000000000000000000000000\")","result_hash":"9a5063c327faec672db6b50450571675cbfbcc3766ebaf6832c3a9f6636ff4d0","slot":null},{"block":null,"method":"eth_call","params":["0x94174e3D1335db402dD03A092f7aA7ac2cb32be4","symbol()"],"raw_result":"Some(\"USOon\")","result_hash":"d3b147844c3d656f4e27b8fd00f492b3177fbdbf0ea6a66d5d9f74d570e38cab","slot":null},{"block":null,"method":"eth_call","params":["0x94174e3D1335db402dD03A092f7aA7ac2cb32be4","name()"],"raw_result":"Some(\"United States Oil Fund (Ondo Tokenized)\")","result_hash":"6382a3ae9f4abe1e1b50695243281cc4885d07b8355fae44235684091ca624b8","slot":null},{"block":null,"method":"eth_call","params":["0x94174e3D1335db402dD03A092f7aA7ac2cb32be4","decimals()"],"raw_result":"Some(18)","result_hash":"c14f173ff30df32f36fac2ea29d9a20482082428fd32b58be5433d310884f764","slot":null},{"block":null,"method":"eth_call","params":["0x94174e3D1335db402dD03A092f7aA7ac2cb32be4","totalSupply()"],"raw_result":"Some(\"1304969845200270321362\")","result_hash":"e093b0576ae0ff659fc64b057545a39027e517113f2918da2bc294831c229b38","slot":null},{"block":null,"method":"eth_getCode","params":["0x94174e3D1335db402dD03A092f7aA7ac2cb32be4","latest"],"result_hash":"94608f5be99dad7eba2f1291156fff602e3d7e462e4517d8f65af38ba0f4b7b4","slot":null},{"block":null,"method":"eth_getCode","params":["0x94174e3D1335db402dD03A092f7aA7ac2cb32be4","latest"],"result_hash":"94608f5be99dad7eba2f1291156fff602e3d7e462e4517d8f65af38ba0f4b7b4","slot":null}],"registry_entry":{"chain":"bnb","contract":"0x94174e3D1335db402dD03A092f7aA7ac2cb32be4","decimals":null,"issuer":"Ondo","last_checked":"2026-10-19T21:40:22Z","name":"United States Oil Fund (Ondo Tokenized)","official_deployments":[{"address":"0x1F5fc5c3c8B0F15c7E21AF623936FF2b210b6415","network":"Ethereum"},{"address":"0x94174e3D1335db402dD03A092f7aA7ac2cb32be4","network":"BNB Chain"},{"address":"rpydAzWdCy85HEmoQkH5PVxYtDYQWjmLxgHHadxondo","network":"Solana"},{"address":"0xA4dB50bB345151f3649539300523e83a8b8A6BC7","network":"HyperEVM"}],"source":"https://docs.ondo.finance/addresses.md","source_url":"https://www.dropbox.com/scl/fi/qjfxyg748mx0dwi6up86d/EXTERNAL-Ondo-GM-Tokens-Ondo-GM-Tokens.csv?rlkey=n3no1w78wrah3umsl0nr9s77i&e=2&st=spdit2q1&dl=1","ticker":"USO"},"registry_hash":"f3939bae933ba4104be438e67c414e84d9eb518cec0448785678b642b9519284","signer":"GJWKkiUd3zj1pJGfeE7JitiPiwDJC6XmNFvpJWJuvvpn","slot":null,"subject":"0x623dFe832DA3cb6ca6E940eB8fb0D20a7Effe280","ticker":"USO","verdict":{"Verified":{"issuer":"Ondo","ticker":"USO"}},"version":1}
Signature
W/MmmqK1o0jqRjpF1lCC7DHwJ53z+TfZTlh0LACDvVcSM334s6cJhaXlxcw6N8XfrJjBcnzYrdJcn/T9r3cIBw==
API call
GET /api/attest/9f8386704098612e2d04b04138bce22937a1a2e5ef72222ca3d9d06667f56564
  1. Fetch the public key and attestation JSON, then verify the signature with the published key.
  2. Canonicalize the payload with sorted object keys and no whitespace, then verify its SHA-256 attestation id.
  3. Run the API call above and compare the returned payload, serial, signer, and signature with this certificate.